1431304021121 has 8 divisors (see below), whose sum is σ = 1541420399400. Its totient is φ = 1321189938432.

The previous prime is 1431304021067. The next prime is 1431304021139. The reversal of 1431304021121 is 1211204031341.

It can be written as a sum of positive squares in 4 ways, for example, as 55759738225 + 1375544282896 = 236135^2 + 1172836^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1431304021121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431304021141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852371 + ... + 1894503.

It is an arithmetic number, because the mean of its divisors is an integer number (192677549925).

Almost surely, 2^{1431304021121} is an apocalyptic number.

It is an amenable number.

1431304021121 is a deficient number, since it is larger than the sum of its proper divisors (110116378279).

1431304021121 is a wasteful number, since it uses less digits than its factorization.

1431304021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147795.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1431304021121 its reverse (1211204031341), we get a palindrome (2642508052462).

The spelling of 1431304021121 in words is "one trillion, four hundred thirty-one billion, three hundred four million, twenty-one thousand, one hundred twenty-one".